5 November 2016: "Where Credit’s Due: Andean Makers’ Marks and a Theory of Bureaucratic Games." Making a Mark: Graphs Beyond Language. Program in Early Cultures, Brown University.
7 April 2016: "The 'Coastal Cajamarca' Style Did Not Come from the Coast." 81st Annual Meeting of the Society for American Archaeology. Orlando, Florida.
1 March 2015: "Ethnicity, Ritual, Game Theory: Conflict and Cooperation in the Andes." 43rd Annual Midwest Conference on Andean and Amazonian Archaeology and Ethnohistory. Vanderbilt University.
4 August 2014: "Sacred and Profane Aspects of Water in the Ancient and Modern Andes." Global Food, Water, and Quality of Life Workshop, The Midwest Institute. Kalamazoo Valley Community College.
2 February 2014: "Ethnicity in the Ancient Andes." Latin American and Caribbean Forum. University of Puerto Rico Río Piedras.
11 October 2012: "Ritual in the Making of Ethnicity at Las Varas, Peru." University of Michigan Museum of Anthropology Brown Bag Series. Ann Arbor, Michigan.
15 July 2011: “Los platos pintados de Las Varas.” Museo Arqueológico "Horacio Urteaga", Universidad Nacional de Cajamarca. Cajamarca, Peru.
1 April 2011: “The Domestic Architecture of Las Varas.” 76th Annual Meeting of the Society for American Archaeology. Sacramento.
7 June 2008: “Chimú y Cajamarca: Nuevos datos sobre la interacción entre la costa y la sierra.” Dumbarton Oaks Roundtable, "Reconsidering the Late Intermediate Period on the North Coast of Peru." Trujillo, Peru.
27 March 2008: “Vertical Archipelago Revisited: Testing Murra's Fourth Case in the Middle Jequetepeque Valley, Peru.” 73rd Annual Meeting of the Society for American Archaeology. Vancouver.
3 August 2007: “Espacio ritual como área de reproducción de la identidad étnica: Un caso de Las Varas, un sitio Intermedio Tardío del valle medio del Jequetepeque.” Conference for Comparative Perspectives on the Archaeology of Coastal South America. Lima.
8 June 2007: “Estilo e interacción en una comunidad Cajamarca Costeño: Resultados preliminares del Proyecto Arqueológico Las Varas, temporada 2006.” Pontificia Universidad Católica del Perú. Lima.
24 May 2007: “Proyecto Arqueológico Las Varas: Resultados Preliminares de la Temporada 2006.” Talk presented in the village of Pay Pay, Cajamarca, Peru.
28 April 2006: “Analysis of Adobe Bricks from Farfán and Huaca de la Luna, Peru.” 71st Annual Meeting of the Society for American Archaeology. San Juan, Puerto Rico.
7 April 2006: Discussant for Conference on Ethnicity, Race, and Political Violence in the Andes. University of Michigan. Ann Arbor, Michigan.
2000: “Segmentation and Integration: Late Classic Maya Lithics from Chaa Creek.” UCLA Department of Anthropology 9th Annual Honors Presentation. Los Angeles.
2000: “Late Classic Lithic Economy at Chaa Creek, Belize.” 27th Annual Western Anthropology and Sociology Undergraduate Research Conference, Santa Clara University. Santa Clara, California.